Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / srujan
In a homogenous transparent medium light travels in a
straight line and this is known as rectilinear propagation
of light. This can be demonstrated by the following
experiment:
Take three cardboards A, B and C and make a pinhole at
their centres. Place a burning candle on one side of the
cardboard A and arrange the cardboards in such a way that
the three pinholes and the candle flame are in a straight
line. The candle flame will be visible through the pinhole
of the cardboard C.
Now slightly displace any one of the cardboards and try to
see the flame through the pinhole of the cardboard C. The
flame will not be visible. From this it is clear that light
travels in a straight line.
| Is This Answer Correct ? | 56 Yes | 36 No |
Post New Answer View All Answers
Explain the branches of physics?
how to figure cubic feet of concrete using English measurements?
When sound waves travel from air to water, what happens to its frequency?
If the distance separating two charges is doubled, the force between them decreases by what multiple factor?
Explain how many more times louder is 70 decibels than 10 decibels?
How fast can a shadow move ? If a moth fly's in front of a very bright room temperature light powerful enough to light up Saturn like the sun could it's shadow move faster then light if there was no light diffusion.
What is the longest lasting synthetic periodic element?
What instrument is used to measure volume?
how many neutrons and how many protons are present in a single deuterium nucleus?
Explain the characteristics of dead stars?
What are the branches of physics?
What is time?
If blue light is combined with green light, what color of light is produced?
What is free fall acceleration?
dear sir i need rrb chennai Section engineer S & T for last 2 year question papers. Plz send my email id is gsmaliniraj@yahoo.co.in, malinisankaram@gmail.com
